cygwin bash startup command weirdness (part 1) Post: 302148480

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Top Forums UNIX for Dummies Questions & Answers cygwin bash startup command weirdness (part 1) Post 302148480 by fabulous2 on Sunday 2nd of December 2007 12:58:11 PM

12-02-2007

Registered User

cygwin bash startup command weirdness (part 1)

I am running (I believe) the latest stable version of cygwin

CYGWIN_NT-5.1 1.5.24(0.156/4/2) 2007-01-31 10:57 i686 Cygwin

on a win xp sp2 laptop.

Suppose, to make things simple for now (but I may do a part 2 posting...), that I am in a dos shell, and I want to create a bash shell and have it execute a few commands before closing and returning to the dos prompt.

I have experimentally found that this (dos) command line does the trick:

c:\cygwin\bin\bash.exe --login -c "pwd && ls -a"

It outputs

/home/BKernigan
. .. .bash_history .bash_profile .bashrc .inputrc

as expected, and then closes and returns to dos. Note that the working directory is my home directory, /home/BKernigan, and that its contents (all bash related config files) are correctly listed.

This (dos) command line

c:\cygwin\bin\bash.exe -i -c "pwd && ls -a -l"

(same as above except that -i replaces --login) partially works; it outputs

/cygdrive/d/unix/nextVersion/script
bash: ls: command not found

Here, it thinks that the working directory is the directory where I created the dos shell (d:\unix\nextVersion\script), as opposed to my cygwin home, so that is one difference from the --login version. And then, for some bizarre reason, the ls command is not found! Hmm, how can it find the pwd command but not ls? Note that the ls command really is in my cygwin installation (this is known both because the ls command in the first example worked, and I can also assure you that ls.exe is found in C:\cygwin\bin).

Does anyone have any idea what is going on here???

The web research that I did does not seem to answer this question. (The best single reference being the generic bash reference Bash Reference Manual: Invoking Bash, but I found it to be quite complex.)

Forgive me in advance if this is such an obvious error on my part.

Also, if this is not the best forum--or even the best website--for this question, by all means suggest to me where I should go and I will repost it there.

fabulous2

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cr

cr(1)							      General Commands Manual							     cr(1)

NAME

       cr - converts text files between nix EOL and dos EOL

SYNOPSIS

       cr  - | +  <input file> <output file>

DESCRIPTION

       Text  files,  such  as tle files, that come from a dos source usualy have the ^M symbol at the end of every line. Cr converts files between
       the dos newline format and the normal *nix newline format by stripping the ^M to convert dos to *nix, using the '-' option, or adding ^M to
       a *nix file to create the proper dos file when the '+' option is used.

       Although this extra character is not often a problem, programs like seesat5, which are data driven will encounter parsing problems when the
       extra character is present. It is these problems that cr is intended to repair.

   Options
       - | +  One or the other of these options is required. The '-' option is used to remove ^M from all newlines found in the dos file. The  '+'
	      option is used to add ^M to every newline found in a *nix file.

       input file
	      Fully delineated path to the input file. As this program is used in the dos environment as well, standard input is not used.

       output file
	      Fully delineated path to the output file. As this program is used in the dos environment as well, standart output is not used.

SEE ALSO

       seesat5(1), seesat5(7), SEESAT5.INI(5), tle(5)

BUGS

       Cr  is  not an inteligent program. It methodicaly replaces/removes the offending character when it finds it in the correct context. Newline
       sequences found in contexts other than 'newline' will be replaced/removed just like those found in the proper  context.	Passing  a  binary
       file through cr is not advised, for this reason. Send all inqueries to Dale Scheetz <dwarf@polaris.net>.

Debian Linux							    2 April 96								     cr(1)